28733205 has 16 divisors (see below), whose sum is σ = 46491840. Its totient is φ = 15151488.

The previous prime is 28733191. The next prime is 28733219. The reversal of 28733205 is 50233782.

It is an interprime number because it is at equal distance from previous prime (28733191) and next prime (28733219).

It is not a de Polignac number, because 28733205 - 2¹⁸ = 28471061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9427 + ... + 12096.

It is an arithmetic number, because the mean of its divisors is an integer number (2905740).

Almost surely, 2^28733205 is an apocalyptic number.

It is an amenable number.

28733205 is a deficient number, since it is larger than the sum of its proper divisors (17758635).

28733205 is a wasteful number, since it uses less digits than its factorization.

28733205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21620.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 28733205 is about 5360.3362767647. The cubic root of 28733205 is about 306.2866189726.

Adding to 28733205 its reverse (50233782), we get a palindrome (78966987).

The spelling of 28733205 in words is "twenty-eight million, seven hundred thirty-three thousand, two hundred five".